Angle of incidence

After speaking with an instructor about my Pilatus B4 landings, he argued that
the angle of incidence on this glider has a great influence on the landing
characteristics.
I looked it up, and it was only 1.5 degrees. With the tailplane oriented at -3
degrees.

However, I cannot figure out what other gliders have as the angle of
incidence. I have 6 degrees in my head somehow, but I'm not sure where I get
this from. Searching on Google does not give me figures, only stories about
changing it (from Ls6 to Ls8 for example).

I'm therefor wondering: can you tell me the angle of incidence on your glider
if you know it? And how does it effect take-off and landing characteristics?
For example: some people in my club argue that the Discus2 take-off
characteristics are also to be blamed on its angle of incidence.

regards,

Roel